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m68k: amiga - Amiga Gayle IDE platform device conversion
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven
parent
a24a6b2225
commit
9aed230265
@ -11,6 +11,7 @@
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#include <linux/zorro.h>
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#include <asm/amigahw.h>
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#include <asm/amigayle.h>
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#ifdef CONFIG_ZORRO
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@ -55,7 +56,24 @@ static int __init amiga_init_bus(void)
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subsys_initcall(amiga_init_bus);
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#endif /* CONFIG_ZORRO */
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static int z_dev_present(zorro_id id)
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{
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unsigned int i;
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for (i = 0; i < zorro_num_autocon; i++)
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if (zorro_autocon[i].rom.er_Manufacturer == ZORRO_MANUF(id) &&
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zorro_autocon[i].rom.er_Product == ZORRO_PROD(id))
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return 1;
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return 0;
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}
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#else /* !CONFIG_ZORRO */
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static inline int z_dev_present(zorro_id id) { return 0; }
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#endif /* !CONFIG_ZORRO */
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static const struct resource a3000_scsi_resource __initconst = {
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@ -72,8 +90,36 @@ static const struct resource a4000t_scsi_resource __initconst = {
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};
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static const struct resource a1200_ide_resource __initconst = {
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.start = 0xda0000,
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.end = 0xda1fff,
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.flags = IORESOURCE_MEM,
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};
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static const struct gayle_ide_platform_data a1200_ide_pdata __initconst = {
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.base = 0xda0000,
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.irqport = 0xda9000,
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.explicit_ack = 1,
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};
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static const struct resource a4000_ide_resource __initconst = {
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.start = 0xdd2000,
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.end = 0xdd3fff,
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.flags = IORESOURCE_MEM,
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};
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static const struct gayle_ide_platform_data a4000_ide_pdata __initconst = {
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.base = 0xdd2020,
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.irqport = 0xdd3020,
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.explicit_ack = 0,
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};
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static int __init amiga_init_devices(void)
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{
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struct platform_device *pdev;
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if (!MACH_IS_AMIGA)
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return -ENODEV;
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@ -99,6 +145,21 @@ static int __init amiga_init_devices(void)
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platform_device_register_simple("amiga-a4000t-scsi", -1,
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&a4000t_scsi_resource, 1);
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if (AMIGAHW_PRESENT(A1200_IDE) ||
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z_dev_present(ZORRO_PROD_MTEC_VIPER_MK_V_E_MATRIX_530_SCSI_IDE)) {
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pdev = platform_device_register_simple("amiga-gayle-ide", -1,
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&a1200_ide_resource, 1);
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platform_device_add_data(pdev, &a1200_ide_pdata,
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sizeof(a1200_ide_pdata));
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}
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if (AMIGAHW_PRESENT(A4000_IDE)) {
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pdev = platform_device_register_simple("amiga-gayle-ide", -1,
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&a4000_ide_resource, 1);
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platform_device_add_data(pdev, &a4000_ide_pdata,
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sizeof(a4000_ide_pdata));
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}
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return 0;
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}
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@ -104,4 +104,10 @@ struct GAYLE {
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#define GAYLE_CFG_250NS 0x00
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#define GAYLE_CFG_720NS 0x0c
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struct gayle_ide_platform_data {
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unsigned long base;
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unsigned long irqport;
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int explicit_ack; /* A1200 IDE needs explicit ack */
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};
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#endif /* asm-m68k/amigayle.h */
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@ -16,6 +16,7 @@
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#include <linux/init.h>
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#include <linux/zorro.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <asm/setup.h>
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#include <asm/amigahw.h>
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@ -23,15 +24,6 @@
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#include <asm/amigayle.h>
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/*
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* Bases of the IDE interfaces
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*/
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#define GAYLE_BASE_4000 0xdd2020 /* A4000/A4000T */
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#define GAYLE_BASE_1200 0xda0000 /* A1200/A600 and E-Matrix 530 */
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#define GAYLE_IDEREG_SIZE 0x2000
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/*
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* Offsets from one of the above bases
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*/
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@ -68,20 +60,20 @@ MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
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static int gayle_test_irq(ide_hwif_t *hwif)
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{
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unsigned char ch;
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unsigned char ch;
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ch = z_readb(hwif->io_ports.irq_addr);
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if (!(ch & GAYLE_IRQ_IDE))
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return 0;
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return 1;
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ch = z_readb(hwif->io_ports.irq_addr);
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if (!(ch & GAYLE_IRQ_IDE))
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return 0;
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return 1;
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}
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static void gayle_a1200_clear_irq(ide_drive_t *drive)
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{
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ide_hwif_t *hwif = drive->hwif;
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ide_hwif_t *hwif = drive->hwif;
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(void)z_readb(hwif->io_ports.status_addr);
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z_writeb(0x7c, hwif->io_ports.irq_addr);
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(void)z_readb(hwif->io_ports.status_addr);
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z_writeb(0x7c, hwif->io_ports.irq_addr);
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}
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static void __init gayle_setup_ports(struct ide_hw *hw, unsigned long base,
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@ -122,64 +114,89 @@ static const struct ide_port_info gayle_port_info = {
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* Probe for a Gayle IDE interface (and optionally for an IDE doubler)
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*/
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static int __init gayle_init(void)
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static int __init amiga_gayle_ide_probe(struct platform_device *pdev)
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{
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unsigned long phys_base, res_start, res_n;
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unsigned long base, ctrlport, irqport;
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int a4000, i, rc;
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struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS];
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struct ide_port_info d = gayle_port_info;
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struct resource *res;
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struct gayle_ide_platform_data *pdata;
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unsigned long base, ctrlport, irqport;
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unsigned int i;
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int error;
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struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS];
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struct ide_port_info d = gayle_port_info;
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struct ide_host *host;
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if (!MACH_IS_AMIGA)
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return -ENODEV;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res)
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return -ENODEV;
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if ((a4000 = AMIGAHW_PRESENT(A4000_IDE)) || AMIGAHW_PRESENT(A1200_IDE))
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goto found;
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#ifdef CONFIG_ZORRO
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if (zorro_find_device(ZORRO_PROD_MTEC_VIPER_MK_V_E_MATRIX_530_SCSI_IDE,
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NULL))
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goto found;
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#endif
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return -ENODEV;
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found:
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printk(KERN_INFO "ide: Gayle IDE controller (A%d style%s)\n",
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a4000 ? 4000 : 1200,
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ide_doubler ? ", IDE doubler" : "");
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if (a4000) {
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phys_base = GAYLE_BASE_4000;
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irqport = (unsigned long)ZTWO_VADDR(GAYLE_IRQ_4000);
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d.port_ops = &gayle_a4000_port_ops;
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} else {
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phys_base = GAYLE_BASE_1200;
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irqport = (unsigned long)ZTWO_VADDR(GAYLE_IRQ_1200);
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d.port_ops = &gayle_a1200_port_ops;
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}
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res_start = ((unsigned long)phys_base) & ~(GAYLE_NEXT_PORT-1);
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res_n = GAYLE_IDEREG_SIZE;
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if (!request_mem_region(res_start, res_n, "IDE"))
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if (!request_mem_region(res->start, resource_size(res), "IDE"))
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return -EBUSY;
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for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) {
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base = (unsigned long)ZTWO_VADDR(phys_base + i * GAYLE_NEXT_PORT);
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ctrlport = GAYLE_HAS_CONTROL_REG ? (base + GAYLE_CONTROL) : 0;
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pdata = pdev->dev.platform_data;
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pr_info("ide: Gayle IDE controller (A%u style%s)\n",
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pdata->explicit_ack ? 1200 : 4000,
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ide_doubler ? ", IDE doubler" : "");
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gayle_setup_ports(&hw[i], base, ctrlport, irqport);
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base = (unsigned long)ZTWO_VADDR(pdata->base);
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ctrlport = 0;
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irqport = (unsigned long)ZTWO_VADDR(pdata->irqport);
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if (pdata->explicit_ack)
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d.port_ops = &gayle_a1200_port_ops;
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else
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d.port_ops = &gayle_a4000_port_ops;
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hws[i] = &hw[i];
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}
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for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++, base += GAYLE_NEXT_PORT) {
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if (GAYLE_HAS_CONTROL_REG)
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ctrlport = base + GAYLE_CONTROL;
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rc = ide_host_add(&d, hws, i, NULL);
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if (rc)
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release_mem_region(res_start, res_n);
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gayle_setup_ports(&hw[i], base, ctrlport, irqport);
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hws[i] = &hw[i];
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}
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return rc;
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error = ide_host_add(&d, hws, i, &host);
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if (error)
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goto out;
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platform_set_drvdata(pdev, host);
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return 0;
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out:
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release_mem_region(res->start, resource_size(res));
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return error;
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}
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module_init(gayle_init);
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static int __exit amiga_gayle_ide_remove(struct platform_device *pdev)
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{
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struct ide_host *host = platform_get_drvdata(pdev);
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struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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ide_host_remove(host);
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release_mem_region(res->start, resource_size(res));
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return 0;
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}
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static struct platform_driver amiga_gayle_ide_driver = {
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.remove = __exit_p(amiga_gayle_ide_remove),
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.driver = {
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.name = "amiga-gayle-ide",
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.owner = THIS_MODULE,
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},
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};
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static int __init amiga_gayle_ide_init(void)
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{
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return platform_driver_probe(&amiga_gayle_ide_driver,
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amiga_gayle_ide_probe);
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}
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module_init(amiga_gayle_ide_init);
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static void __exit amiga_gayle_ide_exit(void)
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{
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platform_driver_unregister(&amiga_gayle_ide_driver);
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}
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module_exit(amiga_gayle_ide_exit);
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:amiga-gayle-ide");
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